Clutch engagement process in which the target angle is controlled

Abstract

A method for engaging a drive shaft of a turbo engine with an output shaft by means of a clutch is provided. The turbo engine is run up to a rotational speed that is subsynchronous to the speed of the output shaft and is maintained at the steady speed before a signal is set or before starting the engagement process.

The invention claimed is:  
     
       1. A method for clutch engagement of an input drive shaft of a continuous flow machine to an output drive shaft using a clutch, comprising:
 accelerating the continuous flow machine to a rotation speed which is subsynchronous with respect to the output drive shaft and is held at a steady rotation speed before a signal is set which starts a clutch engagement process; and 
 setting the signal when a phase difference between two partial shaft trains is such that both centers of gravity are opposite. 
 
     
     
       2. The method as claimed in  claim 1 , wherein the steady rotation speed has a magnitude of −10 rpm with respect to the output drive shaft. 
     
     
       3. The method as claimed in  claim 2 , wherein a relative twist angle between the two partial shaft trains is determined. 
     
     
       4. The method as claimed in  claim 3 , wherein the relative twist angle is stored in an automation appliance, and is used by a closed-loop control system. 
     
     
       5. The method as claimed in  claim 2 , wherein the signal is blocked, in such a way that a plurality of shaft oscillations is determined and compared in a disengaged state of the two partial shaft trains. 
     
     
       6. The method as claimed  claim 2 , wherein two oscillation measurements are performed for each of the two partial shaft trains. 
     
     
       7. The method as claimed in  claim 2 , wherein one pulsed signal is determined per revolution for each of the two partial shaft trains, in order to determine the rotation speed. 
     
     
       8. The method as claimed in  claim 2 , wherein the phase difference is determined using a plurality of forward-running vectors of the input drive shaft and of the output drive shaft.